90 lines
3.1 KiB
PHP
90 lines
3.1 KiB
PHP
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##
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## This file is part of the coreboot project.
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##
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## Copyright (C) 2014 Google Inc
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; version 2 of the License.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program; if not, write to the Free Software
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## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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##
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ARCH_SUPPORTED := ARMV7 X86_32
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ARCH_TO_TOOLCHAIN_X86_32 := x86_32
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ARCH_TO_TOOLCHAIN_ARMV7 := armv7
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COREBOOT_STANDARD_STAGES := bootblock romstage ramstage
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ARCHDIR-i386 := x86
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ARCHDIR-x86_32 := x86
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ARCHDIR-armv7 := armv7
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CFLAGS_armv7 = \
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-ffixed-r8\
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-march=armv7-a\
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-marm\
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-mno-unaligned-access\
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-mthumb\
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-mthumb-interwork
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toolchain_to_dir = \
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$(foreach arch,$(ARCH_SUPPORTED),\
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$(eval INCLUDES_$(ARCH_TO_TOOLCHAIN_$(arch)) = \
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-Isrc/arch/$(ARCHDIR-$(ARCH_TO_TOOLCHAIN_$(arch)))/include))
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# set_stage_toolchain: Decides the toolchain to be used by every stage
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# E.g.: If bootblock is x86_32, it sets ARCH-BOOTBLOCK-y = x86_32, whereas
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# ARCH-BOOTBLOCK-n = armv7. Then, ARCH-BOOTBLOCK-y can be used anywhere to
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# decide the compiler toolchain for bootblock stage
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# This step is essential for initializing the toolchain for coreboot standard
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# stages i.e. bootblock, romstage and ramstage, since it acts as the second
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# parameter to create_class_compiler below in init_standard_toolchain
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set_stage_toolchain= \
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$(foreach arch,$(ARCH_SUPPORTED),$(eval ARCH-$(1)-$(CONFIG_ARCH_$(1)_$(arch)) := $(ARCH_TO_TOOLCHAIN_$(arch))))
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# create_class_compiler: Used to create compiler tool set for
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# special classes
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# @1: special class
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# @2: compiler set to be used
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# e.g.: smm special class uses i386 as compiler set
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define create_class_compiler
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CC_$(1) := $(CC_$(2))
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LD_$(1) := $(LD_$(2))
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NM_$(1) := $(NM_$(2))
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OBJCOPY_$(1) := $(OBJCOPY_$(2))
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OBJDUMP_$(1) := $(OBJDUMP_$(2))
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STRIP_$(1) := $(STRIP_$(2))
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READELF_$(1) := $(READELF_$(2))
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INCLUDES_$(1) = -Isrc/arch/$(ARCHDIR-$(2))/include
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CFLAGS_$(1) = $$(CFLAGS_common) $$(INCLUDES_$(1)) $(CFLAGS_$(2))
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LIBGCC_FILE_NAME_$(1) = $(shell test -r `$(CC_$(2)) -print-libgcc-file-name` && \
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$(CC_$(2)) -print-libgcc-file-name)
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endef
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# initialize standard toolchain (CC,AS and others) for give stage
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# @1 : stage for which the toolchain is to be initialized
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init_standard_toolchain = \
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$(eval stage_caps := $(shell tr '[:lower:]' '[:upper:]' <<< $(1))) \
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$(eval $(call set_stage_toolchain,$(stage_caps))) \
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$(eval $(call create_class_compiler,$(1),$(ARCH-$(stage_caps)-y))) \
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$(eval $(call set_stage_libgcc,$(1)))
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init_stages = \
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$(foreach stage,$(COREBOOT_STANDARD_STAGES),$(eval $(call init_standard_toolchain,$(stage))))
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# This mapping is created to have consistency with xcompile naming
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$(eval $(call create_class_compiler,x86_32,i386))
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$(eval $(call toolchain_to_dir))
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$(call init_stages)
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